Infiltrating a secretive health spa rumored in a certain region for covert photography! Once a bustling entertainment district, along the riverbanks, there are many abandoned brothels. Yet, without fail, one to two establishments remain open from evening onwards. The buildings and the ladies are all as they were in the past... The infiltration team delves into the rumored retro brothel scene, sneaking into a suspicious shop in a certain prefecture and city! They discreetly filmed inside the shop with a super-miniature camera hidden in a bag! Of course, there are also many middle-aged women with stories!
